.github, cli, completion: cross-compile arm64 Windows asset #797

ee7 · 2023-08-16T16:55:35Z

Continue the recent zig cc work, such that the next configlet release will have two new release assets:

configlet_4.0.0-beta.14_windows_arm64.zip
configlet_4.0.0-beta.14_windows_arm64.zip.minisig

where the archive contains the executable:

$ file ./configlet.exe
./configlet: PE32+ executable (console) Aarch64, for MS Windows, 6 sections

The aarch64-windows-gnu target will have Tier 1 Zig support.

Refs: #24
Refs: #122
Closes: #764

To-do:

Compress as .zip, not .tar.gz
Make it actually output a Windows arm64 executable, not x86_64
Final nitpicks

The new job indicated success, but didn't upload an executable. This was because on the Windows runner, the default shell is PowerShell: Run ./.github/bin/install-zig ./.github/bin/install-zig shell: C:\Program Files\PowerShell\7\pwsh.EXE -command ". '{0}'" Explicitly set the shell to bash for every cross compilation job.

Fix error: CC: configlet.nim Hint: [Link] Hint: mm: refc; threads: on; opt: size; options: -d:release 92399 lines; 54.815s; 167.895MiB peakmem; proj: D:\a\configlet\configlet\src\configlet.nim; out: D:\a\configlet\configlet\configlet.exe [SuccessX] Info: Nimble data file "C:\Users\runneradmin\.nimble\nimbledata2.json" has been saved. stripping large comment section from executable... C:\Program Files\LLVM\bin\llvm-strip.exe: error: 'configlet': no such file or directory (It turns out that `llvm-strip` is installed in the Windows runners).

Some llvm-strip usage: --remove-section=section Remove <section> -R <value> Alias for --remove-section --strip-all-gnu Compatible with GNU's --strip-all --strip-all Remove non-allocated sections outside segments. .gnu.warning* and .ARM.attribute sections are not removed --strip-debug Remove all debug sections --strip-sections Remove all section headers and all sections not in segments --strip-symbol=symbol Strip <symbol> --strip-unneeded Remove all symbols not needed by relocations -S Alias for --strip-debug -s Alias for --strip-all

ee7 · 2023-08-17T11:26:18Z

The build workflow ran successfully and created this release, which ~~has an arm64 Windows asset.~~ (Edit: it was actually a x86_64 asset in disguise)

@ErikSchierboom Do you have access to an arm64 Windows machine? If so, could you test the above configlet?

ee7 · 2023-08-17T11:35:34Z

Hmm, why does file say that the new executable is x86-64?

I'll see if not stripping makes a difference, but I'd guess that the executable really is x86-64 right now.

ErikSchierboom · 2023-08-17T16:07:19Z

@ErikSchierboom Do you have access to an arm64 Windows machine? If so, could you test the above configlet?

Unfortunately I don't. Maybe ask on the forum?

The x86_64 Windows archive is .zip.

Try to suppress 10,000 lines of output. It printed a line for each extracted file.

dumpbin probably exists somewhere on the runner, but it wasn't found.

ee7 · 2023-08-17T18:55:30Z

I don't understand why it seems to be outputting an x86_64 executable:

$ .github/bin/cross-compile
[...]
  Executing D:\a\configlet\configlet\nimdir\bin\nim.exe c --colors:on --noNimblePath \
-d:release --cpu:arm64 --os:windows -d:zig -d:target:aarch64-windows-gnu \
-d:NimblePkgVersion=4.0.0 \
--path:C:\Users\runneradmin\.nimble\pkgs2\parsetoml-0.7.1-586fe63467a674008c4445ed1b8ac882177d7103 \
--path:C:\Users\runneradmin\.nimble\pkgs2\jsony-1.1.5-6aeb83e7481ca8686396a568096054bc668294df \
--path:C:\Users\runneradmin\.nimble\pkgs2\supersnappy-2.1.3-36a05ee6befe3764ed8e2a6fb5d0882c2fd090f8 \
-o:D:\a\configlet\configlet\configlet.exe D:\a\configlet\configlet\src\configlet.nim
Hint: used config file 'D:\a\configlet\configlet\nimdir\config\nim.cfg' [Conf]
Hint: used config file 'D:\a\configlet\configlet\nimdir\config\config.nims' [Conf]
Hint: used config file 'D:\a\configlet\configlet\config.nims' [Conf]
...................................................................................................................................................
D:\a\configlet\configlet\src\patched_stdlib\json.nim(1[23](https://github.com/exercism/configlet/actions/runs/5894684581/job/15988813028#step:5:24)3, 7) Hint: 'typInst' is declared but not used [XDeclaredButNotUsed]
...............................................
D:\a\configlet\configlet\nimdir\lib\posix\posix.nim(1155, 13) Hint: 'sig' is declared but not used [XDeclaredButNotUsed]
CC: ../nimdir/lib/system/exceptions.nim
[...]
CC: configlet.nim
Hint:  [Link]
Hint: mm: refc; threads: on; opt: size; options: -d:release
92399 lines; 54.335s; 167.895MiB peakmem; proj: D:\a\configlet\configlet\src\configlet.nim; out: D:\a\configlet\configlet\configlet.exe [SuccessX]
$ llvm-readobj configlet.exe
File: configlet.exe
Format: COFF-x86-64
Arch: x86_64
AddressSize: 64bit

ErikSchierboom · 2023-08-17T19:05:07Z

Could it be a Zig issue? Maybe try compiling a non-Nim Zig application first? Just to confirm that Zig can actually do the cross compiling to Windows Arm 64

ee7 · 2023-08-17T19:12:56Z

Yeah, Zig can do that. And it works for me locally:

$ nimble build -d:release -d:zig --cpu:arm64 --os:windows -d:target:aarch64-windows-gnu
$ file ./configlet
./configlet: PE32+ executable (console) Aarch64, for MS Windows, 6 sections
$ llvm-readobj ./configlet
File: ./configlet
Format: COFF-ARM64
Arch: aarch64
AddressSize: 64bit

So I suspect that we might fix this problem if we cross compile from x86_64 Linux, rather than x86_64 Windows. But I don't know why.

Anyway, I'll try that now.

Rather than from x86_64 windows, which seemed to produce an x86_64 executable: $ llvm-readobj configlet.exe File: configlet.exe Format: COFF-x86-64 Arch: x86_64 AddressSize: 64bit despite compiling with: --cpu:arm64 --os:windows -d:zig -d:target:aarch64-windows-gnu

When cross-compiling from Linux to Windows: - output the executable with a `.exe` file extension, by passing -o to Nim - fix error for `llvm-readobj` not found

…to Windows" This reverts commit 92a278d. Nim gets passed -o:/home/runner/work/configlet/configlet/configlet which overwrites the given -o:configlet.exe

ee7 · 2023-08-17T19:44:30Z

So I suspect that we might fix this problem if we cross compile from x86_64 Linux, rather than x86_64 Windows.

Yeah, that did it:

configlet: PE32+ executable (console) Aarch64, for MS Windows

ErikSchierboom · 2023-08-17T20:24:17Z

Somewhat odd and unexpected, but 🤷‍♂️

Decrease the diff size of the current PR. This won't do anything currently, since we don't do any cross-compiling on a machine where llvm-strip is available.

Make it work on Linux, macOS, and Windows.

This reverts commit 8318c80. Do this in a follow-up PR.

Not used for now. Reduce the PR diff size.

ee7 force-pushed the github-cross-windows branch from 77b3c1c to 80fd33b Compare August 17, 2023 08:26

.github, cli, completion: cross-compile arm64 Windows asset

672ddad

ee7 force-pushed the github-cross-windows branch from 80fd33b to 672ddad Compare August 17, 2023 10:00

ee7 mentioned this pull request Aug 17, 2023

build: Support more platforms #24

Closed

17 tasks

ee7 added 3 commits August 17, 2023 12:11

ee7 marked this pull request as ready for review August 17, 2023 11:26

ee7 requested a review from ErikSchierboom as a code owner August 17, 2023 11:26

ee7 added 3 commits August 17, 2023 13:30

.github(cross-compile): try --strip-all

512ef4a

.github(cross-compile): try not stripping comment section

5585617

.github(cross-compile): try not stripping

425a056

ErikSchierboom approved these changes Aug 17, 2023

View reviewed changes

ee7 mentioned this pull request Aug 17, 2023

release: 4.0.0-beta.14 #802

Merged

ee7 added 4 commits August 17, 2023 19:28

.github(cross-compile): compress arm64 Windows as zip, not tar.gz

3e27bc3

The x86_64 Windows archive is .zip.

.github(cross-compile): print executable information

770182d

.github(install-zig): pass -q to unzip

dd8bb5d

Try to suppress 10,000 lines of output. It printed a line for each extracted file.

.github(cross-compile): use llvm-readobj, not dumpbin

65fee21

dumpbin probably exists somewhere on the runner, but it wasn't found.

config: try removing --passL:-static for windows

8318c80

ee7 added 4 commits August 17, 2023 21:15

.github(cross-compile): improve cross-compilation from Linux to Windows

92a278d

When cross-compiling from Linux to Windows: - output the executable with a `.exe` file extension, by passing -o to Nim - fix error for `llvm-readobj` not found

Revert ".github(cross-compile): improve cross-compilation from Linux …

96fb657

…to Windows" This reverts commit 92a278d. Nim gets passed -o:/home/runner/work/configlet/configlet/configlet which overwrites the given -o:configlet.exe

.github(cross-compile): just rename to .exe instead

8a1edde

ee7 added 4 commits August 18, 2023 07:42

.github(cross-compile): add stripping again

60fa400

Decrease the diff size of the current PR. This won't do anything currently, since we don't do any cross-compiling on a machine where llvm-strip is available.

.github(cross-compile): improve post-build info

2f53de9

Make it work on Linux, macOS, and Windows.

Revert "config: try removing --passL:-static for windows"

09acdcd

This reverts commit 8318c80. Do this in a follow-up PR.

.github(cross-compile): remove --strip-all-gnu again

14770c9

Not used for now. Reduce the PR diff size.

ee7 merged commit 3824299 into exercism:main Aug 18, 2023
6 checks passed

ee7 deleted the github-cross-windows branch August 18, 2023 06:35

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.github, cli, completion: cross-compile arm64 Windows asset #797

.github, cli, completion: cross-compile arm64 Windows asset #797

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.github, cli, completion: cross-compile arm64 Windows asset #797

.github, cli, completion: cross-compile arm64 Windows asset #797

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